Middle English, from Old French unctueus, from Medieval Latin nctusus, from Latin nctum, ointment, from neuter past participle of unguere, to anoint

‘Middle English, from Old French unctueus, from Medieval Latin nctusus, from Latin nctum, ointment, from neuter past participle of unguere, to anoint’ has been looked up 15 times, and is not a valid Scrabble word.